Vodacom deals

I app**** for a contract deal on the 27 of August and I got approved the same day but the phones were not at the store so I had to wait. The lady then told me they have received one of the devices and she will let me know when she get the other one and she did which was today, when Im supposed to collect my phones, she told me the deal app**** for is not available and I cannot get the phones, how is that even possible because I was approved and I just needed to get my phones, I'M SO UNHAPPY AND I CANNOT ACCEPT THIS. Now I'm supposed to run around and it's not fair at all. Vodacom I need your response it's not fair at all!!!